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2 vulnerabilities by Wizards of the Coast
CVE-2026-107448 (GCVE-0-2026-107448)
Vulnerability from nvd – Published: 2026-10-08 03:57 – Updated: 2026-10-10 02:56
VLAI
EPSS
VEX
Summary
Magic: The Gathering Arena (Windows/Steam client; 2026.59.30.12801.127931.6 and certain later 2026.60.x builds) passes a server-supplied URL from a home-screen carousel GoToExternalUrl action directly to the Windows shell via Application.OpenURL/ShellExecuteW without validating the URI scheme or domain. A hypothetical attacker able to control the carousel content delivered to clients can cause arbitrary registered URI-scheme handlers to be invoked on client hosts with no user interaction. For example, one might expect that the carousel content only has https: URIs, not ms-calculator: URIs.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-10 02:55 UTC
CWE
- CWE-99 - Improper Control of Resource Identifiers ('Resource Injection')
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wizards of the Coast | Magic: The Gathering Arena |
Affected:
2026.59.30.12801.127931.6
(custom)
|
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CVE-2026-107448 (GCVE-0-2026-107448)
Vulnerability from cvelistv5 – Published: 2026-10-08 03:57 – Updated: 2026-10-10 02:56
VLAI
EPSS
VEX
Summary
Magic: The Gathering Arena (Windows/Steam client; 2026.59.30.12801.127931.6 and certain later 2026.60.x builds) passes a server-supplied URL from a home-screen carousel GoToExternalUrl action directly to the Windows shell via Application.OpenURL/ShellExecuteW without validating the URI scheme or domain. A hypothetical attacker able to control the carousel content delivered to clients can cause arbitrary registered URI-scheme handlers to be invoked on client hosts with no user interaction. For example, one might expect that the carousel content only has https: URIs, not ms-calculator: URIs.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-10 02:55 UTC
CWE
- CWE-99 - Improper Control of Resource Identifiers ('Resource Injection')
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wizards of the Coast | Magic: The Gathering Arena |
Affected:
2026.59.30.12801.127931.6
(custom)
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